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Finding the Fourth Proportional to 832,250.64, 1,248,080.72 and 299,628.64

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Solution

The fourth proportional to 832,250.64, 1,248,080.72 and 299,628.64 is: 449,336.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,250.64 : 1,248,080.72 = 299,628.64 : x
  2. Step 2: Convert to fraction form
    832,250.64/1,248,080.72 = 299,628.64/x
  3. Step 3: Cross multiply
    832,250.64x = 1,248,080.72 × 299,628.64
  4. Step 4: Simplify right side
    832,250.64x = 373,960,728,743.82
  5. Step 5: Solve for x
    x = 373,960,728,743.82/832,250.64
  6. Step 6: Final answer
    x = 449,336.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.